On Jan 16, 2008, at 2:48 PM, vade wrote:
This is because your hair is more than one color ;)
Luckily not yet.
The iSight camera and the histogram does per pixel comparisons, so
depending on lighting, the histogram will decide your hair pixel is
closer to one particular color in your map than another. Since the
colors are not smoothly ramped, but somewhat posterized, you will
see your hair changing color as the histogram changes its mind.
Very likely my daughter will use static pictures from her iPhoto
library. The iChat effect version will just continue to be a little
goofy.
I think the technique ("chunking") is simply nearest neighbor
interpolation vs linear, no?
I was referring to the programmatic implementation of a step-function.
The step function could be used instead of the gradient image lookup.
I don't know what is faster - looking up the "solved" function in and
image or calculating the function itself.
On Jan 16, 2008, at 3:10 PM, Alex Drinkwater wrote:
It seems to have trouble deciding wether my hair is brown or
black. I don't know if that is because of the iSight camera or the
operation is dependent on overall quantity of a color in an image.
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